Home / 8,515.44-12,775.32-2,672.28

Finding the Fourth Proportional to 8,515.44, 12,775.32 and 2,672.28

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Solution

The fourth proportional to 8,515.44, 12,775.32 and 2,672.28 is: 4,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.44 : 12,775.32 = 2,672.28 : x
  2. Step 2: Convert to fraction form
    8,515.44/12,775.32 = 2,672.28/x
  3. Step 3: Cross multiply
    8,515.44x = 12,775.32 × 2,672.28
  4. Step 4: Simplify right side
    8,515.44x = 34,139,232.13
  5. Step 5: Solve for x
    x = 34,139,232.13/8,515.44
  6. Step 6: Final answer
    x = 4,009.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.